Question

我正在尝试https://cloud.ibm.com/apidocs/natural-language-understanding中记录的各种功能的示例示例。尝试使用Curl时，除“情感”功能外，所有功能示例均正常运行。

curl -X POST \
-H "Content-Type: application/json" \
-u "apikey:{apikey}" \
-d @parameters.json \
"{url}/v1/analyze?version=2018-11-16"

parameters.json
{
  "url": "www.wsj.com/news/markets",
  "features": {
    "sentiment": {
      "targets": [
        "stocks"
      ]
    }
  }
}



Sentiment feature response:
{
  "language": "en",
  "error": "target(s) not found",
  "code": 400
}

Answer 1

这就是它为我工作的方式。详细说明以帮助他人。

首先，您必须创建一个名为parameters.json的文件并粘贴以下代码

{
  "url": "www.wsj.com/news/markets",
  "features": {
    "sentiment": {
      "targets": [
        "stocks"
      ]
    }
  }
}

指向该JSON文件在终端或命令提示符下的文件夹，并用NLU服务值替换{apikey}和{URL}，运行以下命令

curl -X POST \                                                                                                                            
-H "Content-Type: application/json" \
-u "apikey:{APIKEY}" \
-d @parameters.json \
"{URL}/v1/analyze?version=2018-11-16"

在我的情况下，{URL}是https://gateway.watsonplatform.net/natural-language-understanding/api

然后应该会看到以下输出

{
  "usage": {
    "text_units": 1,
    "text_characters": 1421,
    "features": 1
  },
  "sentiment": {
    "targets": [
      {
        "text": "stocks",
        "score": -0.640222,
        "mixed": "1",
        "label": "negative"
      }
    ],
    "document": {
      "score": -0.662399,
      "label": "negative"
    }
  },
  "retrieved_url": "https://www.wsj.com/news/markets",
  "language": "en"
}

Watson NLU的情感功能示例失败，错误代码为400

1 个答案: